Industrial sector stocks are trading lower today after ISM data showed that manufacturing in the U.S. contracted in June. Industrial Select Sector SPDR (NYSE: XLI) is lower by 1.23 percent in a relatively thin and flat market on Monday.

Shares of Caterpillar Inc. (NYSE: CAT) and Boeing (NYSE: BA) are leading the group lower. Weakening growth in China is also dragging down stocks in the sector, especially CAT.